It seems that vbox is not dereferencing the hub object all the time.<br><br>Index: VBoxUsbMon.cpp
<br>===================================================================
<br>--- VBoxUsbMon.cpp    (revision 38578)
<br>+++ VBoxUsbMon.cpp    (working copy)
<br>@@ -560,6 +560,7 @@
<br>                     {<br>                         LOG(("the walker said to stop"));<br>                         ObDereferenceObject(Data.pDevObj);<br>+                        ObDereferenceObject(pHubFileObj);<br>

                         break;<br>                     }<br> <br><br clear="all"><br>Above patch is MIT licensed<br><br><br>Thanks,<br>-- Ribhi<br>